From what I've seen lately, I feel the thinking on this has changed a bit over the years. Old school would be to roll the CB off the ball on the spot and leave the CB on the end rail with both balls on your side. Done properly it's tough for your opponent not to give up a shot.
But nowadays, with the more aggressive or even hyper-aggressive styles, it seems that forcing the ball on the spot towards your hole, while the back ball two-rails to your side and the CB draws back to the kitchen, seems to be the shot of choice, needing one or two. Another favorite is going all out for the the two-railer on the back ball, while moving the ball on the spot to your side, and three-railing the CB around the table back into the kitchen. I first saw Cliff shoot it on an Acc-Stats tape, practiced it, and actually made it against Tom Wirth, strong player from DC, at the US Open many years ago
Lou Figueroa